JPH06127125A - Reversible thermal recording sheet - Google Patents
Reversible thermal recording sheetInfo
- Publication number
- JPH06127125A JPH06127125A JP4097632A JP9763292A JPH06127125A JP H06127125 A JPH06127125 A JP H06127125A JP 4097632 A JP4097632 A JP 4097632A JP 9763292 A JP9763292 A JP 9763292A JP H06127125 A JPH06127125 A JP H06127125A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- layer
- base material
- thermal recording
- reversible thermal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、熱パルスにより発色
し、かつ、その発色を熱によって消去することができる
可逆性感熱記録シートに係り、特に、発色、消色の繰り
返しに対して耐久性を有する構成の可逆性感熱記録シー
トに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversible thermosensitive recording sheet which develops a color by a heat pulse and can erase the color by heat, and particularly, it is durable against repeated color development and decolorization. And a reversible thermosensitive recording sheet having the constitution
【０００２】[0002]
【従来の技術】従来からある感熱記録シートは、特公昭
43‐4160号公報、特公昭 45‐14039号公報等に開示さ
れているように、電子供与性の無色の染料前駆体と電子
受容性の顕色剤とをバインダ中に分散して紙などの支持
体上に塗布し、熱ヘッド、熱ペン、レーザ光等により熱
を与え、無色の染料前駆体と電子受容性の顕色剤とを瞬
時に反応させて記録画像を形成するものである。これら
の基本となる技術は、発色した画像をできるだけ長期間
安定保存することを目標として技術開発が進み、ファク
シミリプリンタ、券売機など多くの産業の記録技術とし
て、極めて多量のシートが用いられている。しかし、多
くの分野で重要な記録技術となった反面、多量の廃棄シ
ートが生み出される結果となり、また、資源の再利用の
点でも感熱記録シートの性質上再生が難しいという問題
を引き起こす結果を招いている。2. Description of the Related Art Conventional thermal recording sheets are available from
As disclosed in Japanese Patent Publication No. 43-4160, Japanese Patent Publication No. 45-14039, etc., an electron-donating colorless dye precursor and an electron-accepting developer are dispersed in a binder to form a paper It is applied on a support and heated by a thermal head, a heating pen, a laser beam, etc., and the colorless dye precursor and the electron-accepting developer are instantly reacted to form a recorded image. These basic technologies are being developed with the aim of keeping colored images as stable as possible for as long as possible, and an extremely large number of sheets are used as recording technologies in many industries such as facsimile printers and ticket vending machines. . However, while it has become an important recording technology in many fields, it results in the production of a large amount of waste sheets, and also causes the problem that it is difficult to reproduce due to the nature of thermal recording sheets in terms of resource reuse. I am
【０００３】この問題の解決のために、一度記録した画
像を消去し、再び記録を行うという試みが発表されてい
る。例えば、特開平 2‐188293号公報、特開平 2‐1882
94号公報、国際特開 WO‐90/11898号公報等にその開示
がなされている。また、電子写真学会主催“ Japan Har
dcopy '90 ”論文集 NIP 2 第147〜150頁に詳細に報告
されている。これら開示資料の技術によれば、無色の染
料前駆体としては従来の不可逆感熱記録に使用されてい
るものと同一のものが用いられ、電子受容物質として、
従来ビス・フェノールＡ(有機酸)を顕色剤として使用し
ていたのに対して、酸・塩基の両性を示す材料を顕色・減
色剤として使用することが開示されている。具体的な内
容の一例としては、フェノール性水酸基、カルボキシル
基の少なくとも一つを有し、かつ、アミノ基を官能基あ
るいは塩化合物の一部として有する両性化合物を顕・減
色剤として利用できることが開示されている。In order to solve this problem, an attempt has been made to erase an image once recorded and then record again. For example, JP-A-2-188293 and JP-A-2-1882
The disclosure is made in Japanese Patent Laid-Open No. 94, International Patent Publication WO-90 / 11898, and the like. Also, "Japan Har
dcopy '90 "Proceedings NIP 2 pp. 147-150. The techniques of these disclosures show that the colorless dye precursors are identical to those used in conventional irreversible thermographic recording. Used as an electron acceptor,
Although bis-phenol A (organic acid) has been used as a developer in the past, it has been disclosed that a material exhibiting both an acid and a base is used as a developer / color-reducing agent. As one example of specific contents, it is disclosed that an amphoteric compound having at least one of a phenolic hydroxyl group and a carboxyl group and having an amino group as a functional group or a part of a salt compound can be used as a color-developing / color-reducing agent. Has been done.
【０００４】[0004]
【発明が解決しようとする課題】本発明者等が上記開示
技術に基いて注意深く再現実験を行った結果、記録、消
去を繰り返し行った場合に、発色、消色の濃度変化の特
性はそれほど低下しないが、シートの表面が次第に変形
し、記録した文字、パターンなどに対応するキズ模様の
パターンを生じること、また、基材にポリエステルシー
トを用いた場合には帯電によると思われるゴミの付着が
著しく、本来の発色、消色の寿命を待たずに汚染が著し
く目立つようになることが認められ、従来の感熱シート
の一回使用という条件とは著しく異なった仕様が必要で
あることが明確になった。As a result of careful reproduction experiments conducted by the present inventors based on the above disclosed technique, the characteristics of density change in color development and color erasing are significantly reduced when recording and erasing are repeated. However, the surface of the sheet is gradually deformed, resulting in a scratched pattern corresponding to the recorded characters and patterns, and when a polyester sheet is used as the base material, dust that may be caused by charging is not attached. Remarkably, it was recognized that the contamination became noticeable without waiting for the original color development and erasing life, and it was clarified that a specification significantly different from the conventional one-time use condition of the heat-sensitive sheet is required. became.
【０００５】その他の観察結果も含め、従来技術の問題
点を整理すると、(1) 文字消去後、変形が残留するこ
と、(2) (1)の状態で繰り返し使用を継続すると表面に
スリ傷が多数発生すること、 (3) 発色・消色層が基材
から剥離しやすく、記録エネルギが高い場合には発泡す
る場合もあること、(4) 基材シートに紙を用いた場合
に、湿度が高く、紙の含水率が大きい場合には、消色の
ための加熱時に著しく皺を生じ、極端な場合には再使用
が困難になること、(5) プラスチック系の基材を用いた
場合には、ポリエステル、ポリエチレン、ポリカーボネ
ートなどベース材の種類、表面の処理状態によっても異
なるが、多数回の記録・消去の加熱によってかなり大き
い周期の、例えば 20mmピッチの、皺を生じること、な
どが挙げられる。The problems of the prior art including the other observation results are summarized as follows: (1) Deformation remains after erasing characters, and (2) Scratches on the surface when repeated use is continued in the state of (1). (3) The coloring / decoloring layer is easily peeled from the base material and may foam when the recording energy is high. (4) When paper is used for the base material sheet, When the humidity is high and the water content of the paper is high, wrinkles are remarkably generated during heating for decoloring, and in extreme cases it becomes difficult to reuse, (5) Using a plastic base material In this case, although it depends on the type of base material such as polyester, polyethylene, and polycarbonate, and the surface treatment condition, wrinkles with a considerably large cycle, for example, a 20 mm pitch, may be generated by heating for many times of recording and erasing. Can be mentioned.
【０００６】本発明の目的は、上記従来技術の有してい
た課題を解決して、繰り返しの発色・消色の操作に対し
て耐久性のある可逆性感熱記録シートを提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art and to provide a reversible thermosensitive recording sheet which is durable against repeated coloring and erasing operations.
【０００７】[0007]
【課題を解決するための手段】上記目的は、少なくとも
基材と可逆性感熱記録層とからなり、記録及び消去を繰
り返し行うことができる可逆性感熱記録シートにおい
て、上記基材として空洞含有構造のポリエステルシート
を用いた可逆性感熱記録シートとすることによって達成
することができる。The above object is to provide a reversible thermosensitive recording sheet comprising at least a base material and a reversible thermosensitive recording layer, and capable of repeating recording and erasing. This can be achieved by using a reversible thermosensitive recording sheet using a polyester sheet.
【０００８】また、ゴミ付着の問題については該シート
の可逆性感熱記録層を設けていない面に帯電防止処理を
施すこと、キズの問題については可逆性感熱記録層の表
面に少なくとも耐熱性を有しかつ記録層の記録特性を劣
化させることのない耐熱保護層を設けること、感熱記録
層の基材からの剥離の問題については感熱記録層と基材
との間に接着強化層を設けることが有効である。Regarding the problem of dust adhesion, an antistatic treatment is applied to the surface of the sheet on which the reversible thermosensitive recording layer is not provided. Regarding the problem of scratches, the surface of the reversible thermosensitive recording layer has at least heat resistance. And to provide a heat-resistant protective layer that does not deteriorate the recording characteristics of the recording layer, and for the problem of peeling of the heat-sensitive recording layer from the base material, provide an adhesion-strengthening layer between the heat-sensitive recording layer and the base material. It is valid.
【０００９】[0009]
【作用】上記従来技術の有していた問題点について本発
明者等が実験的に検討を重ねた結果、繰り返しの熱サイ
クルによって発生する皺の問題については、耐熱性の材
料である空洞含有構造のポリエステルシートを用いるこ
とが特に有効であることを見出した。As a result of the experiments conducted by the inventors of the present invention, the problems of wrinkles caused by repeated thermal cycles have been confirmed by the present inventors. It was found that it is particularly effective to use the above polyester sheet.
【００１０】また、この材料を用いたシートに帯電防止
処理を施したものはゴミの付着もなく、また、自動シー
トフィーダを用いて移送した場合にも重ね送りがないこ
とも確認された。It was also confirmed that the sheet using this material, which has been subjected to the antistatic treatment, has no adhesion of dust and that there is no overlap feeding even when it is transferred by using an automatic sheet feeder.
【００１１】キズ対策としての耐熱保護層の材料として
は、UV 硬化樹脂、EB 硬化樹脂が好ましく、ウレタンア
クリレート樹脂/酢酸ブチル、エポキシアクリレート系
樹脂など変形が残留し難い樹脂の中から選択することが
できることを確認した。As a material for the heat-resistant protective layer as a countermeasure against scratches, UV-curable resin and EB-curable resin are preferable, and urethane acrylate resin / butyl acetate, epoxy acrylate resin, and the like, which are hard to remain deformed, are selected. I confirmed that I could do it.
【００１２】また、感熱記録層〜基材間に設ける接着強
化層としては、例えば基材表面のコロナ処理による活性
層の形成が有効である。As the adhesion-strengthening layer provided between the heat-sensitive recording layer and the substrate, it is effective to form an active layer by corona treatment of the substrate surface.
【００１３】[0013]
【実施例】以下、本発明可逆性感熱記録シートの構成に
ついて実施例によって具体的に説明する。EXAMPLES The constitution of the reversible thermosensitive recording sheet of the present invention will be specifically described below with reference to examples.
【００１４】[0014]
【実施例１】基材シートとして空洞含有ポリエステルフ
ィルム G 1215(東洋紡績(株)製 帯電防止層付き)を用
い、その表面に下記組成の感熱記録材料をワイヤバーコ
ータで塗布した。Example 1 A void-containing polyester film G 1215 (with an antistatic layer manufactured by Toyobo Co., Ltd.) was used as a substrate sheet, and the surface thereof was coated with a heat-sensitive recording material having the following composition with a wire bar coater.
【００１５】 発色染料(TH‐105 保土谷化学工業(株)製) 1.0重量部 発・消色剤(顕減色剤)(没食子酸オクタデシルアミン錯体) 5.8重量部 アクリル樹脂(アクリペット 三菱化成(株)製)20％トルエン溶液 10.0重量部 ステアリン酸アミド 1.0重量部 溶剤(トルエン) 29.0重量部 上記で得られた試料を 60℃ 30分間乾燥し、その表面に
耐熱保護層となる三菱レイヨン(株)製のFS‐1052(光硬
化樹脂)を塗布した後、UV 照射装置を通すことにより可
逆性感熱記録シートを完成した。Coloring dye (TH-105 manufactured by Hodogaya Chemical Co., Ltd.) 1.0 part by weight Decolorizing / decoloring agent (developing / reducing agent) (octadecylamine gallate complex) 5.8 parts by weight Acrylic resin (Acrypet Mitsubishi Kasei Co., Ltd. )) 20% toluene solution 10.0 parts by weight Stearic acid amide 1.0 part by weight Solvent (toluene) 29.0 parts by weight The sample obtained above is dried at 60 ° C for 30 minutes to form a heat-resistant protective layer on the surface of Mitsubishi Rayon Co., Ltd. A reversible thermosensitive recording sheet was completed by applying FS-1052 (photo-curable resin) manufactured by K.K.
【００１６】上記で得られたシートについて、一般の感
熱プリンタ AP‐850(セイコーエプソン社製)を用いて記
録を行ったところ、良好な記録画像を得ることができ
た。また、消色については、記録画像のある可逆性感熱
シートを、通常レーザプリンタ等のトナー定着に用いら
れる定着装置の温度を消去温度に合わせ、熱ロール(ア
ルミニウム製で内部にヨウ素入り赤外線ランプを装着し
た加熱部を有する)とシリコンバックアップロールとの
間に挿入するだけで消色を行うことができた。また、こ
のときの消去温度は90〜150℃という極めて広い範囲で
よく、赤外線ランプは最大定格 350W のものを用いた
が、実際に点灯する時間は短くて済み、平均入力は 40
〜60W 程度で完全な消去が可能であった。Recording was performed on the sheet obtained above using a general thermal printer AP-850 (manufactured by Seiko Epson Corp.), and a good recorded image could be obtained. For decoloring, a reversible heat-sensitive sheet with a recorded image is adjusted to the erasing temperature by adjusting the temperature of a fixing device that is usually used for toner fixing such as a laser printer, and a heat roll (made of an aluminum infrared lamp containing iodine). It was possible to perform erasing simply by inserting it between the (which has the heating unit attached) and the silicon backup roll. Also, the erasing temperature at this time can be in an extremely wide range of 90 to 150 ° C, and the infrared lamp with a maximum rating of 350W was used, but the actual lighting time was short and the average input was 40W.
Complete erasure was possible with ~ 60W.
【００１７】[0017]
【実施例２】基材シートとして空洞含有ポリエステルフ
ィルム G 1915(東洋紡績(株)製 帯電防止層付き)を用
い、その表面に下記組成の発色・消色材料の塗布を行っ
た。Example 2 A void-containing polyester film G 1915 (manufactured by Toyobo Co., Ltd. with an antistatic layer) was used as a substrate sheet, and a coloring / decoloring material having the following composition was applied to the surface thereof.
【００１８】 発色染料(CVL 保土谷化学工業(株)製) 1.0重量部 発・消色剤(顕減色剤)(没食子酸オクタデシルアミン錯体) 5.8重量部 アクリル樹脂(アクリペット 三菱化成(株)製)20％トルエン溶液 10.0重量部 樹脂微粒粉(スチレン微粒粉) 5.0重量部 ステアリン酸アミド 1.0重量部 溶剤(トルエン) 29.0重量部 以下、実施例１の場合と同様にして可逆性感熱記録シー
トを作製した。Coloring dye (CVL manufactured by Hodogaya Chemical Co., Ltd.) 1.0 part by weight Coloring / decoloring agent (developing and reducing agent) (octadecylamine gallate complex) 5.8 parts by weight Acrylic resin (Acrypet Mitsubishi Kasei Co., Ltd.) ) 20% toluene solution 10.0 parts by weight Resin fine particles (styrene fine particles) 5.0 parts by weight Stearic acid amide 1.0 parts by weight Solvent (toluene) 29.0 parts by weight Hereinafter, a reversible thermosensitive recording sheet was prepared in the same manner as in Example 1. did.
【００１９】上記で得られたシートについて、実施例１
の場合と同一の記録装置、消去装置を用いて試験を行
い、画像の発色、消去を行うことができた。About the sheet obtained above, Example 1
Using the same recording device and erasing device as in the case of No. 1, it was possible to perform color development and erasing of the image.
【００２０】なお、本実施例の場合、UV 硬化耐熱保護
層を付けたときと付けないときとの差はそれほど大きく
ないが、実施例１の場合よりも耐久性が一段と向上した
結果が得られた。In the case of this embodiment, the difference between the case where the UV-curing heat-resistant protective layer was applied and the case where it was not applied was not so large, but the durability was further improved as compared with the case of the example 1. It was
【００２１】[0021]
【実施例３】実施例１、２と同様内容の試料について、
基材に感熱記録層を塗布する前に予め接着強化層を設け
た場合と設けない場合、および、基材に帯電防止層を設
けた場合と設けない場合とについて比較試験を行った。
接着強化層の効果についてはクロスカットテストを実施
したが、接着強化層を設けた試料の方が接着強度が50％
向上するという結果が得られた。また、帯電防止層の効
果については、通常の室内の机上に放置した場合のゴミ
の付着について比較した場合に大きな相違のあることが
確認された。記録シートにゴミの付着がある場合、記録
装置に悪影響を及ぼし、搬送系にもゴミの付着が生じ、
結果として感熱記録ヘッドを汚染する。特に、シリアル
型感熱記録ではヘッドがゴミを集める結果となり、感熱
記録ヘッドにダメージを与える結果となる。Example 3 For samples having the same contents as in Examples 1 and 2,
Comparative tests were carried out with and without the adhesion-strengthening layer previously provided on the substrate before applying the heat-sensitive recording layer, and with and without the antistatic layer on the substrate.
A cross-cut test was conducted for the effect of the adhesion-strengthening layer, but the sample with the adhesion-strengthening layer has a 50% adhesion strength.
The result was improved. In addition, it was confirmed that the effect of the antistatic layer was significantly different when the dust adhesion when left on a normal indoor desk was compared. If dust adheres to the recording sheet, it adversely affects the recording device and causes dust to adhere to the transport system.
As a result, the thermal recording head is contaminated. In particular, in the case of serial type thermal recording, the head collects dust, resulting in damage to the thermal recording head.
【００２２】[0022]
【実施例４】基材シートとして上記実施例で用いた基材
と同系統の材料であるダイヤホイルシート W‐900(ダイ
ヤホイル(株)製)を用いて上記実施例と同様の試料作成
を行い、試験を行ったが、全く同様の結果が得られた。Example 4 A sample similar to the above example was prepared by using a diamond foil sheet W-900 (manufactured by Dia foil Co., Ltd.), which is a material of the same type as the substrate used in the above example, as the substrate sheet. Performed and tested, exactly the same results were obtained.
【００２３】なお、本発明可逆性感熱記録シートの概略
構成を図１の断面図に示した。ここで、１は基材シー
ト、２は発色・消色層、３は耐熱保護層、４は帯電防止
層、５は接着強化層を示す。The schematic structure of the reversible thermosensitive recording sheet of the present invention is shown in the sectional view of FIG. Here, 1 is a base material sheet, 2 is a coloring / decoloring layer, 3 is a heat resistant protective layer, 4 is an antistatic layer, and 5 is an adhesion strengthening layer.
【００２４】[0024]
【発明の効果】以上述べてきたように、可逆性感熱記録
シートを本発明構成の記録シートとすることによって、
従来技術の有していた課題を解決して、繰り返しの発色
・消色の操作に対して充分な耐久性を有する可逆性感熱
記録シートを提供することができた。As described above, by using the reversible thermosensitive recording sheet as the recording sheet of the present invention,
It has been possible to provide a reversible thermosensitive recording sheet having sufficient durability against repeated operations of coloring and erasing by solving the problems of the prior art.
【図１】本発明可逆性感熱記録シートの構成を示す断面
図。FIG. 1 is a sectional view showing the constitution of a reversible thermosensitive recording sheet of the present invention.
１…基材シート、２…発色・消色層、３…耐熱保護層、
４…帯電防止層、５…接着強化層。1 ... Substrate sheet, 2 ... Coloring / decoloring layer, 3 ... Heat-resistant protective layer,
4 ... Antistatic layer, 5 ... Adhesion strengthening layer.
Claims (4)
なり、記録及び消去を繰り返し行うことができる可逆性
感熱記録シートにおいて、上記基材として空洞含有構造
のポリエステルシートを用いたことを特徴とする可逆性
感熱記録シート。1. A reversible thermosensitive recording sheet comprising at least a base material and a reversible thermosensitive recording layer and capable of repeating recording and erasing, wherein a polyester sheet having a void-containing structure is used as the base material. Reversible thermosensitive recording sheet.
の可逆性感熱記録層を設けていない面に帯電防止処理を
施したことを特徴とする請求項１記載の可逆性感熱記録
シート。2. The reversible thermosensitive recording sheet according to claim 1, wherein an antistatic treatment is applied to the surface of the void-containing structure polyester sheet substrate on which the reversible thermosensitive recording layer is not provided.
も耐熱性を有し、かつ、記録層の記録特性を劣化させる
ことのない耐熱保護層を設けたことを特徴とする請求項
１及び２記載の可逆性感熱記録シート。3. A heat-resistant protective layer, which has at least heat resistance and which does not deteriorate the recording characteristics of the recording layer, is provided on the surface of the reversible thermosensitive recording layer. The reversible thermosensitive recording sheet according to 2.
と可逆性感熱記録層との間に接着強化層を設けたことを
特徴とする請求項１〜３記載の可逆性感熱記録シート。4. The reversible thermosensitive recording sheet according to claim 1, wherein an adhesion strengthening layer is provided between the void-containing structure polyester sheet substrate and the reversible thermosensitive recording layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4097632A JPH06127125A (en) | 1992-04-17 | 1992-04-17 | Reversible thermal recording sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4097632A JPH06127125A (en) | 1992-04-17 | 1992-04-17 | Reversible thermal recording sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06127125A true JPH06127125A (en) | 1994-05-10 |
Family
ID=14197541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4097632A Pending JPH06127125A (en) | 1992-04-17 | 1992-04-17 | Reversible thermal recording sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06127125A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8911228B2 (en) | 2011-05-20 | 2014-12-16 | Imflux, Inc. | Non-naturally balanced feed system for an injection molding apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543549A (en) * | 1977-06-10 | 1979-01-11 | Honshu Paper Co Ltd | Heat sensitive recording medium |
| JPS58201691A (en) * | 1982-05-20 | 1983-11-24 | Ricoh Co Ltd | Diazo heat sensitive recording material |
| JPS61116581A (en) * | 1984-11-12 | 1986-06-04 | Ricoh Co Ltd | Transparent film for thermal recording |
| JPS6211680A (en) * | 1985-07-10 | 1987-01-20 | Tomoegawa Paper Co Ltd | Thermal recording material |
| JPS6334180A (en) * | 1986-07-29 | 1988-02-13 | Honshu Paper Co Ltd | Thermal recording material |
| JPH0270479A (en) * | 1988-06-08 | 1990-03-09 | Toyobo Co Ltd | Thermal recording medium |
-
1992
- 1992-04-17 JP JP4097632A patent/JPH06127125A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543549A (en) * | 1977-06-10 | 1979-01-11 | Honshu Paper Co Ltd | Heat sensitive recording medium |
| JPS58201691A (en) * | 1982-05-20 | 1983-11-24 | Ricoh Co Ltd | Diazo heat sensitive recording material |
| JPS61116581A (en) * | 1984-11-12 | 1986-06-04 | Ricoh Co Ltd | Transparent film for thermal recording |
| JPS6211680A (en) * | 1985-07-10 | 1987-01-20 | Tomoegawa Paper Co Ltd | Thermal recording material |
| JPS6334180A (en) * | 1986-07-29 | 1988-02-13 | Honshu Paper Co Ltd | Thermal recording material |
| JPH0270479A (en) * | 1988-06-08 | 1990-03-09 | Toyobo Co Ltd | Thermal recording medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8911228B2 (en) | 2011-05-20 | 2014-12-16 | Imflux, Inc. | Non-naturally balanced feed system for an injection molding apparatus |
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